(19)
(11) EP 1 858 617 A2

(12)

(88) Date of publication A3:
12.10.2006

(43) Date of publication:
28.11.2007 Bulletin 2007/48

(21) Application number: 06720823.1

(22) Date of filing: 15.02.2006
(51) International Patent Classification (IPC): 
B01D 39/16(2006.01)
(86) International application number:
PCT/US2006/005534
(87) International publication number:
WO 2006/089063 (24.08.2006 Gazette 2006/34)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

(30) Priority: 13.02.2006 US 354301
16.02.2005 US 654055 P

(71) Applicant: Donaldson Company, Inc.
Minneapolis, MN 55431 (US)

(72) Inventors:
  • KALAYCI, Veli
    Farmington, MN 55024 (US)
  • CROFOOT, Douglas
    Burnsville, Minnesota 55337 (US)
  • GRAFE, Timothy
    Edina, Minnesota 55416 (US)
  • GRAHAM, Kristine, M.
    Minnetonka, MN 55305 (US)

(74) Representative: Eisenführ, Speiser & Partner 
Patentanwälte Rechtsanwälte Postfach 10 60 78
28060 Bremen
28060 Bremen (DE)

   


(54) REDUCED SOLIDITY WEB COMPRISING FIBER AND FIBER SPACER